Back gauge for nailing machines



Se t. 8, 1925. 1,552,504

J. H. POPE BACK GAUGE FOR NAILING MACHINES Filed Sept. 6, 1923 PatentedSept. 8, 1925.

UNITED STATES PATENT OFFICE.

JOSEPH H. POPE, OI HAMILTON, MASSACHUSETTS, ASSIGNO'R IO UNITED SHOE MA-CHINERY CORPORATION, OF IPATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

BACK GAUGE FOR NAILING MACHINES.

Application filed September 6, 1923. Serial No. 661,222.

To all whom it may concern:

Be it known that I, Josnrrr H. Porn, a citizen of the United tates,residing at Hamilton, in the county of Essex and State of Massachusetts,have invented certain Improvements in Back: Gauges for Nailing Machines,of which the following description, in connection with the accompanyingdrawings, is a specification, like reference characters 011 the drawingsindicating like parts in the several figures.

My invention relates to back gauges for nailing machines, as those whichlocate a shoe-upper in correct relation to a heel which is to beattached to the heel-seat by nailing.

Objects of the invention are to furnish such a gauge which is freelyadjustable to insure proper positioning of the work under allconditions, this including, if desired, plural vertical adjustments andtransverse adjustments in a plurality of directions; which may bemovable in the operation of the nailing machine without interferencewith the adjustments; and which will provide at all times a firm stop toreceive the contact of the work.

One of the several embodiments which the invention may assume isillustrated in the accompanying drawing,

Fig. 1 being a front elevation of a portion of a nailing machineincluding my improved gauge;

Fig. 2 an enlarged front elevation of the gauge device;

Fig. 3 aside elevation thereof with parts broken away; and

Fig. 4 a top plan view of the gauge.

At 10 in Fig. 1 appears the frame of a Lightning-nailing orheel-attaching machine of the character of that described in Patent No.446,885, dated February 24, 1891. This frame supports a die-block 12,with the openings of which cooperate reciprocatory drivers 14, andhaving movable toward and from its under side a jack 16 mounted upon areciprocatory cross-head 18. Rising from th cross-head is a supportingbracket 20 furnishing one portion of a hinge, the 0scillatory leaf ofwhich appears at 22. At the rear of the leaf-portion of the hinge arevertical ways 24 to receive a carrier-bar 26, the inclined edges 28 ofwhich conform to the ways. The portion 22 is divided at 30, and theopposite sections may be drawn together to clamp the bar 26 againstmovement between them by a screw 32 turning loosely in one of thesections of the leaf and being threaded into the adjacent section. Withthe screw loosened, the bar may be moved vertically to the desiredposition, and there clamped in place by tightening the screw to draw thesections into engagement with the bar. If, for any reason, as to effectrepairs, it is desired to remove the cross-head 18, the bar 26, with theelements which it carries, may be entirely withdrawn from the supportingleaf. This avoids interference by the gauge device with the removal ofthe giiosi-head, through its contact with the die- Secured to the frameat the rear of the jack is a bracket 34 having a horizontal opening toreceive a screw 36 extending transversely of the bar 26. This screw maybe advanced or withdrawn through the bracket by a nut 38 which issituated between separated portions of the bracket. Hinged at 40 to theforward extremity of the screw 36 is a plate 42 provided with inclinededges 44 to fit ways 46, formed along the rear side of the bar 26 andnear its opposite edges. This sliding connection between the bar and theadjusting screw 36 permits the free reciprocation of the former as thecross-head 18 rises and ,falls in the operation of the machine, therebeing, however, always maintained the adjusting connection between thescrew and the bar.

Upon the upper portion of the bar 26 is a slide 48 having, at itsopposite sides, ways 50 for co-operation with the inclined edges 28 ofthe bar. The slide is divided at 52, and is provided with a screw 54 fordrawing the portions together to clamp the slide upon the bar atwhatever point it may be adjusted, this operating in the same manner asdoes the clamping screw 32. EX- tending transversely of the front faceof the slide near its upper extremity are dovetailed ways 56 to receivea block 58. Projecting from the top of this block forwardly, and hereshown as somewhat inclined upwardly, is a gauge member or back stop inthe form of a fork 60. The divergence between the arms of the fork issuch that the gauge is adapted to contact with the opposite sides of thecounter portion of a shoe carried upon the jack 16, this contact beingat separated points just forward of the rear of the, counter. Its upwardinclination adapts it for use with womens shoes of the Spanish orhigh-arch type. In these the heel-seat of a jacked, shoe lies, withrespect to the horizontal, at. a considerable upward angle toward thefront of the machine. My inclined fork readily engages the counter ofsuch a shoe, without interference with the heel or rand. Threadedthroughthe block is a screw 62, upon the opposite ends of which arefixed heads 64, 64; The inner adjacent faces ofthese heads bear againstthe edges of the slide 48, thus holding the screw against longitudinalmovement. Then it is turned, it causes the travel of the block 58in itsways and thus shifts the fork 56--transversely of'thejac-k.

'In using this gauge device, the fork 60 is adjusted by the screw 62until it is central ized with respect to the jack, this permitting acorrection for wear of the moving parts and for defects 'in manufacture.By' varying the position ofthe bar 26 in'the hingeportion 22 or theslide 48 upon the plate 42, the fork may be positioned vertically so itis arranged to most effectively contact with the counter-portion of thejacked shoe for the particular height of last employed, the doubleadjustment giving wide range of movement and that controlled by thescrew 32 being readily accessible to the operator after the jack hasbeen thrust into nailing position. 'As alreadypointed out, thecapability for complete separation of the gauge device at the clampholding the bar 26facilitates theremoval; of the crosshead 18. Thelocation of the jacked shoe from front to rear of the die-block tobringthe heel-seat into correct relation with a heel H; which is to beattached, is provided for by rotation of the nut 38, this changing theposition of the screw 36 and thereforeof the fork. The

adjusting connection between thescrew 36 and the gauge'is maintained inall positions of the cross-head without interference with the movementof the latter, by means ofthe sliding of the plate 42 and byv thepivotal connections. These connections, being furnished by the hinges at22 and 40, which may be made entirely free from lateralplay, insure apositive location ofthe gauge without displacement when the work ismoved against them.

Having described my invention, what I claim as new and desire to secureby Letters Patent offthe United States is:

1. A back gauge for nailing machines comprising a support, a carrierextending from the support and pivotally connected thereto, a gaugemembermounted upon the carrier, and an adjusting member movabletransversely of and pivotally connected to the carrier.

2. A back gauge for nailing machines comprising a support, a hingesleafpivoted thereon, a bar secured to the leaf, a gauge mounted upon thebar, an adjusting member movable transversely of the bar, --and ahinge-connection between the adjusting member and the bar.

3. A back gauge for nailing machines comprising a support, a hinge-leafpivoted thereon, a bar secured to the leaf, a screw having its axisextending transversely of the bar, a member fixedrelatively to the barand into which the screw is threaded, and a hinge-connection between thescrew and bar.

4. The combination with a frame, of a support movable thereon, a carrierhinged to the support, a gauge member mounted upon the carrier, anadjusting member movable upon the frame, and a hinge joining theadjusting member and carrier and having sliding connection withv saidcarrier.

5, The combination with a frame, of a cross-head movable thereon, a barpivotally.

mounted upon the cross-head, a gauge member mounted upon the bar, ascrew movable upon the frame, and a member pivoted upon the screw andhaving sliding engagement with the bar. 7 i

6. A back gauge for nailing machines comprising a support, a carriermovable upon the support, meansfor securing the carrier against suchmovement, a slide movable upon the carrier, means for fixing the slidein position, and a gauge member mounted upon the slide.

7. A back gauge for nailing machines comprising a support, a hinge-leafpivoted thereon, a bar arranged to slide longitudinally of the leaf,means for securing the bar against movement, adjusting means pivoted tothe bar, a slide movable along the bar, means for fixing the slide inposition, and a gauge member mounted upon the slide,

' 8. A back gauge for nailing machines comprising a support, a carrierextending from the support and pivotally connected thereto, a gaugemember movable trans-' versely of the carrier, and means arranged tovary the position of the gauge member.

9. A back gauge for nailing machines comprising a support, a bar pivotedupon the support, a slide movable along the bar, and a gauge membermovable transversely of the slide.

10. A back gauge for nailing machines comprising a support, a barpivoted upon the support, a slide movable along the bar, means forfixing the slide in position, a gauge member movable tranm ersely of theslide, and a screw threadedinto the gauge member and contacting with theslide.

In testimony whereof I have signed my name to this specification. c

' JOSEPH H; POPE.

